EEF-CVE-2026-114214

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Source
https://cna.erlef.org/osv/EEF-CVE-2026-114214.html
Import Source
https://cna.erlef.org/osv/EEF-CVE-2026-114214.json
JSON Data
https://api.osv.dev/v1/vulns/EEF-CVE-2026-114214
Aliases
  • CVE-2026-114214
  • GHSA-g2h4-xp57-q863
Published
2026-10-25T19:47:30Z
Modified
2026-10-25T20:11:06Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Loading a through relationship with a limit of 1 in Ash ignores the through path and returns unrelated destination records
Details

Summary

Incorrect Authorization vulnerability in ash-project ash allows a client to read destination records unrelated to the source record through a through relationship.

When a has_many relationship declared with through: was loaded for a single record with a limit of 1, or an unsorted has_one through relationship was loaded with a limit of 1, lateral_join?/4 in lib/ash/actions/read/relationships.ex chose the path that reads the destination without any filter linking it to the source. The load returned the first destination record by sort, or any other record with an offset. The read still runs the destination's policies but carries the relationship as accessing_from, so a client paging such a field (for example teachers(limit: 1, offset: n) through AshGraphql) can enumerate destination records that policies allow only when reached through that relationship.

This issue affects ash: from 3.24.0 before 3.37.1.

Impact

A client paging a through relationship field with a limit of 1 reads destination records that should only be reachable through that relationship.

Configurations

Reachable when a through relationship is loaded for a single record with a caller-controlled limit of 1 (and optionally an offset), for example through AshGraphql relationship field arguments, and the destination resource's read policies rely on the relationship (accessing_from) or are otherwise open to the caller.

Database specific 
{
    "capec_ids":  [
        "CAPEC-1"
    ],
    "cpe_ids":  [
        "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
    ],
    "cwe_ids":  [
        "CWE-863"
    ]
}
References
Credits
    • Will Townsend - FINDER
    • Will Townsend - REPORTER
    • Zach Daniel / Ash Project - REMEDIATION_DEVELOPER

Affected packages

Hex / ash

Package

Name
ash
Purl
pkg:hex/ash

Affected ranges

Type
SEMVER
Events
Introduced
3.24.0
Fixed
3.37.1

Affected versions

3.*
3.24.0
3.24.1
3.24.2
3.24.3
3.24.4
3.24.5
3.24.6
3.24.7
3.25.0
3.25.1
3.25.2
3.26.0
3.27.0
3.27.1
3.27.2
3.27.3
3.27.4
3.27.5
3.27.6
3.27.7
3.27.8
3.28.0
3.29.0
3.29.1
3.29.2
3.29.3
3.30.0
3.30.1
3.31.0
3.31.1
3.31.2
3.31.3
3.32.0
3.32.1
3.32.2
3.32.3
3.33.0
3.33.1
3.33.2
3.33.3
3.33.4
3.33.5
3.33.6
3.33.7
3.33.8
3.33.9
3.33.10
3.33.11
3.34.0
3.34.1
3.34.2
3.34.3
3.34.4
3.34.5
3.34.6
3.35.0
3.36.0
3.36.1
3.37.0

Database specific

source 
"https://cna.erlef.org/osv/EEF-CVE-2026-114214.json"

Git / github.com/ash-project/ash

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash
Events
Introduced
24f41e23dcbd9d07cde270a8141490e8f79251f5
Fixed
e37463307304b26bc8fd606322e5c4d8f7f060e5

Affected versions

v3.*
v3.24.0
v3.24.1
v3.24.2
v3.24.3
v3.24.4
v3.24.5
v3.24.6
v3.24.7
v3.25.0
v3.25.1
v3.25.2
v3.26.0
v3.27.0
v3.27.1
v3.27.2
v3.27.3
v3.27.4
v3.27.6
v3.27.7
v3.27.8
v3.28.0
v3.29.0
v3.29.1
v3.29.2
v3.29.3
v3.30.0
v3.30.1
v3.31.0
v3.31.1
v3.31.2
v3.31.3
v3.32.1
v3.32.2
v3.32.3
v3.33.1
v3.33.10
v3.33.11
v3.33.2
v3.33.3
v3.33.4
v3.33.5
v3.33.6
v3.33.7
v3.33.9
v3.34.0
v3.34.1
v3.34.2
v3.34.3
v3.34.4
v3.34.5
v3.34.6
v3.35.0
v3.36.0
v3.36.1
v3.37.0

Database specific

source 
"https://cna.erlef.org/osv/EEF-CVE-2026-114214.json"